package com.proyecto.xpdroid;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.*;
import java.util.ArrayList;

import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;

import com.droid.users.util.UserHolder;
import com.droid.users.util.XPDroidConstants;
import com.proyecto.xpdroid.http.SimpleHttpClient;
import com.proyecto.xpdroid.util.ConfigUtil;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.StrictMode;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;

/**
 * Activity which displays a login screen to the user, offering registration as
 * well.
 */
public class CopyOfLoginActivity extends Activity {
	/**
	 * /** The default email to populate the email field with.
	 */
	public static final String EXTRA_EMAIL = "gmail.com";

	/**
	 * Keep track of the login task to ensure we can cancel it if requested.
	 */
	private UserLoginTask mAuthTask = null;

	// Values for email and password at the time of the login attempt.
	private String mEmail;
	private String mPassword;

	// UI references.
	private EditText mEmailView;
	private EditText mPasswordView;
	private View mLoginFormView;
	private View mLoginStatusView;
	private TextView mLoginStatusMessageView;

	private String resp;
	private String errorMsg;

	@Override
	protected void onCreate(Bundle savedInstanceState) {

		StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
				.permitAll().build();
		StrictMode.setThreadPolicy(policy);

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_login);

		// Set up the login form.
		mEmail = getIntent().getStringExtra(EXTRA_EMAIL);
		mEmailView = (EditText) findViewById(R.id.email);
		mEmailView.setText(mEmail);

		mPasswordView = (EditText) findViewById(R.id.password);
		mPasswordView
				.setOnEditorActionListener(new TextView.OnEditorActionListener() {
					@Override
					public boolean onEditorAction(TextView textView, int id,
							KeyEvent keyEvent) {
						if (id == R.id.login || id == EditorInfo.IME_NULL) {
							try {
								attemptLogin();
							} catch (IOException e) {

								e.printStackTrace();
							}
							return true;
						}
						return false;
					}
				});

		mLoginFormView = findViewById(R.id.login_form);
		mLoginStatusView = findViewById(R.id.login_status);
		mLoginStatusMessageView = (TextView) findViewById(R.id.login_status_message);

		findViewById(R.id.sign_in_button).setOnClickListener(
				new View.OnClickListener() {
					@Override
					public void onClick(View view) {
						try {
							attemptLogin();
						} catch (IOException e) {

							e.printStackTrace();
						}
					}
				});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		super.onCreateOptionsMenu(menu);
		getMenuInflater().inflate(R.menu.login, menu);
		return true;
	}

	/**
	 * Attempts to sign in or register the account specified by the login form.
	 * If there are form errors (invalid email, missing fields, etc.), the
	 * errors are presented and no actual login attempt is made.
	 * 
	 * @throws IOException
	 */
	public void attemptLogin() throws IOException {
		if (mAuthTask != null) {
			return;
		}

		// Reset errors.
		mEmailView.setError(null);
		mPasswordView.setError(null);

		// Store values at the time of the login attempt.
		mEmail = mEmailView.getText().toString();
		mPassword = mPasswordView.getText().toString();

		boolean cancel = false;
		View focusView = null;

		// Check for a valid password.
		if (TextUtils.isEmpty(mPassword)) {
			mPasswordView.setError(getString(R.string.error_field_required));
			focusView = mPasswordView;
			cancel = true;
		} else if (mPassword.length() < 4) {
			mPasswordView.setError(getString(R.string.error_invalid_password));
			focusView = mPasswordView;
			cancel = true;
		}

		// Check for a valid email address.
		if (TextUtils.isEmpty(mEmail)) {
			mEmailView.setError(getString(R.string.error_field_required));
			focusView = mEmailView;
			cancel = true;
		} else if (!mEmail.contains("@")) {
			mEmailView.setError(getString(R.string.error_invalid_email));
			focusView = mEmailView;
			cancel = true;
		}

		if (cancel) {
			// There was an error; don't attempt login and focus the first
			// form field with an error.
			focusView.requestFocus();
		} else {
			// Show a progress spinner, and kick off a background task to
			// perform the user login attempt.

			mAuthTask = new UserLoginTask();
			mAuthTask.execute((Void) null);

			mLoginStatusMessageView.setText(R.string.login_progress_signing_in);
			showProgress(true);

		}
	}

	private String clienteHttp(String dir_web) {
		// String dir_web1 = " ";
		String body = " ";
		try {

			URL url = new URL(dir_web.toString());
			HttpURLConnection urlConnection = (HttpURLConnection) url
					.openConnection();
			// Integer codigoRespuesta =
			// Integer.toString(urlConnection.getResponseCode());
			Integer codigoRespuesta = (urlConnection.getResponseCode());
			if (codigoRespuesta.equals("200")) {// Vemos si es 200 OK y leemos
												// el cuerpo del mensaje.
				body = readStream(urlConnection.getInputStream());
			}
			urlConnection.disconnect();
		} catch (MalformedURLException e) {
			body = e.toString();// Error URL incorrecta
		} catch (SocketTimeoutException e) {
			body = e.toString(); // Error: Finalizado el timeout esperando la
									// respuesta del servidor.
		} catch (Exception e) {
			body = e.toString();// Error diferente a los anteriores.
		}
		return body;
	}

	private String readStream(InputStream in) throws IOException {
		BufferedReader r = null;
		r = new BufferedReader(new InputStreamReader(in));
		StringBuilder total = new StringBuilder();
		String line;
		while ((line = r.readLine()) != null) {
			total.append(line);
		}
		if (r != null) {
			r.close();
		}
		in.close();
		return total.toString();
	}

	/**
	 * Shows the progress UI and hides the login form.
	 */
	@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
	private void showProgress(final boolean show) {
		// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
		// for very easy animations. If available, use these APIs to fade-in
		// the progress spinner.
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
			int shortAnimTime = getResources().getInteger(
					android.R.integer.config_shortAnimTime);

			mLoginStatusView.setVisibility(View.VISIBLE);
			mLoginStatusView.animate().setDuration(shortAnimTime)
					.alpha(show ? 1 : 0)
					.setListener(new AnimatorListenerAdapter() {
						@Override
						public void onAnimationEnd(Animator animation) {
							mLoginStatusView.setVisibility(show ? View.VISIBLE
									: View.GONE);
						}
					});

			mLoginFormView.setVisibility(View.VISIBLE);
			mLoginFormView.animate().setDuration(shortAnimTime)
					.alpha(show ? 0 : 1)
					.setListener(new AnimatorListenerAdapter() {
						@Override
						public void onAnimationEnd(Animator animation) {
							mLoginFormView.setVisibility(show ? View.GONE
									: View.VISIBLE);
						}
					});
		} else {
			// The ViewPropertyAnimator APIs are not available, so simply show
			// and hide the relevant UI components.
			mLoginStatusView.setVisibility(show ? View.VISIBLE : View.GONE);
			mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
		}

	}

	/**
	 * Represents an asynchronous login/registration task used to authenticate
	 * the user.
	 */
	public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
		@Override
		protected Boolean doInBackground(Void... params) {

			ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
			postParameters.add(new BasicNameValuePair(
					XPDroidConstants.PARAMETRO_OPERACION,
					XPDroidConstants.OPERATION_LOGIN_USUARIO));
			postParameters.add(new BasicNameValuePair(
					XPDroidConstants.PARAMETRO_NOMBRE_EMAIL, mEmail));
			postParameters.add(new BasicNameValuePair(
					XPDroidConstants.PARAMETRO_NOMBRE_PASSWORD, mPassword));

			String response = null;

			try {
				response = SimpleHttpClient.executeHttpPost(
						XPDroidConstants.serverUrl, postParameters);

				String res = response.toString();
				resp = res.replaceAll("\\s+", "");

			} catch (Exception e) {
				e.printStackTrace();
				errorMsg = e.getMessage();

			}

			if (resp.equals("loginOk")) {
				// Calling Application class (see application tag in
				// AndroidManifest.xml)
				final UserHolder globalVariable = (UserHolder) getApplicationContext();

				// Set name and email in global/application context
				globalVariable.setEmail(mEmail);
				return true;
			} else {
				return false;
			}

		}

		@Override
		protected void onPostExecute(final Boolean success) {
			mAuthTask = null;
			showProgress(false);

			if (success) {
				finish();
				Intent i = new Intent();
				i.setClass(getApplicationContext(), ItemListActivity.class);
				startActivity(i);
			} else {
				mPasswordView
						.setError(getString(R.string.error_incorrect_password));
				mPasswordView.requestFocus();
			}
		}

		@Override
		protected void onCancelled() {
			mAuthTask = null;
			showProgress(false);
		}

	}
	
	
}
